United manager Ruben Amorim defended Bayindir, stating that the contact from Arsenal's William Saliba was allowed and his team needs to learn to apply similar pressure.
Amorim rejected criticism of the Turkey international when asked if he had considered starting third-choice Tom Heaton and added he was happy with his three main goalkeepers.
Despite the loss, Amorim praised his team's overall performance, noting they were the better side with 22 shots on goal but could not beat Arsenal's goalkeeper David Raya.